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AI · March 22, 2023

Lemin CAPTCHA

Hassle-free CAPTCHA. Stop Bots, Stay Secure.

Lemin CAPTCHA launched on March 22, 2023 with 77 votes, #966 of 5,007 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 3 years on.

What it does

Lemin CAPTCHA offers simple yet powerful protection from brute-force login attacks, credential stuffing, and other automated threats.

Does a similar job

all alternatives →
  • DOOM Captcha2021 · vivirenremoto.github.io · ▲512

    Captchas don't have to be boring

  • Cap2025 · capjs.js.org · ▲428

    A lightweight, modern open-source captcha

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    Privacy-first bot & spam defense, GDPR compliant CAPTCHA

  • WW
  • Replace CAPTCHAs with WebAuthn passkeys for bot prevention2024 · github.com · ▲71

    I built Nocaptcha after getting frustrated with traditional CAPTCHAs both as a user and developer. WebAuthn passkeys offered a promising alternative that's both more secure and user-friendly. What makes Nocaptcha different: - Uses WebAuthn standard instead of puzzle-solving - No need for users to remember passwords or solve puzzles - Open source Current limitation: Working with W3C WebAuthn Community Group on true passkey disposal for this use case. Looking for feedback particularly on: 1. Integration experience 2. User experience compared to traditional CAPTCHAs

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